Table 1.
Effect of Red Light (R) on Subsequent Blue-light (B)-Induced Phototropic Curvature
| Arabidopsis Line | Exposure Time (h) | R Fluence (μmol m−2) | B Fluence Rate (μmol m−2 s−1) | Degrees Curvature ± sea |
|---|---|---|---|---|
| PHOT1-GFP | 8 | 0 | 1 | 12.8 ± 1.7 |
| PHOT1-GFP | 8 | 100 | 1 | 20.8 ± 1.8 |
| g l1 | 11 | 0 | 1 | 41.0 ± 2.4 |
| gl1 | 11 | 100 | 1 | 48.0 ± 3.5 |
| phot1-5 | 11 | 0 | 1 | 3.7 ± 1.5 |
| phot1-5 | 11 | 100 | 1 | 1.2 ± 1.5 |
| PHOT1-GFP | 11 | 0 | 1 | 15.9 ± 1.7 |
| PHOT1-GFP | 11 | 100 | 1 | 23.2 ± 3.1 |
| gl1 | 11 | 0 | 20 | 45.7 ± 2.9 |
| gl1 | 11 | 100 | 20 | 60.4 ± 5.1 |
| phot1-5 | 11 | 0 | 20 | 20.1 ± 3.3 |
| phot1-5 | 11 | 100 | 20 | 35.7 ± 5.2 |
| PHOT1-GFP | 11 | 0 | 20 | 23.2 ± 2.0 |
| PHOT1-GFP | 11 | 100 | 20 | 35.1 ± 4.7 |
Dark incubation following R, 2 h.
a
Values for pairs (± R) in boldface indicate where R provides significant enhancement by R = 100 μmol m−2 over R = 0 μmol m−2 (t test, P < 0.05). For gl1, 1 μmol m−2 s−1 B (P < 0.08).